# US 10,864,785 B2 · Apparatus and method for monitoring tire pressure > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,864,785 B2 - Document ID: US10864785B2 - Status: Granted - Kind: B2 - Application number: 16/458,758 - Filed: 2019-07-01 - Published: 2020-06-04 - Granted: 2020-12-15 - Earliest claimed: 2018-12-04 - Assignees: Hyundai Motor Company; Kia Motors Corporation - Applicants: Hyundai Motor Company; Kia Motors Corporation - Inventors: Han Seon Ga; Myung Ki Yeom; Ju Yong Kang; Hyun Dong Her; Wang Gi Hong; Joon Sang Jo - Web page: https://patentgrep.com/patent/US10864785B2 ## CPC - B60C 23/0401: {characterised by the type of alarm} - B60C 23/06: Signalling devices actuated by deformation of the tyre {, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle} - B60C 23/02: Signalling devices actuated by tyre pressure {(hand-held tyre pressure gauges G01L17/00)} - B60C 23/0471: {System initialisation, e.g. upload or calibration of operating parameters} - B60C 23/061: {by monitoring wheel speed (measuring distance traversed on the ground by vehicles G01C22/00)} - B60C 23/062: {Frequency spectrum analysis of wheel speed signals, e.g. using Fourier transformation} - B60C: VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES ## Abstract An apparatus for monitoring a tire pressure includes a controller configured to determine whether vehicle state information and tire information satisfy a reference condition when a reset button of a tire pressure is operated, detect the tire pressure when the vehicle state information and the tire information satisfy the reference condition, and reset the tire pressure when the tire pressure is within a reference pressure range. ## Claims ### Claim 1 A tire pressure monitoring apparatus comprising a controller configured to: determine whether vehicle state information and tire information satisfy a reference condition when a reset button of a tire pressure is operated, detect the tire pressure when the vehicle state information and the tire information satisfy the reference condition, reset the tire pressure when the tire pressure is within a reference pressure range; and wherein the controller is configured to: determine state information on a brake pedal and a gear stage of a vehicle; and determine that the vehicle state information satisfies a first reference condition when the brake pedal is pressed and the gear stage is engaged at a parking (P) stage. ### Claim 2 (depends on 1) The tire pressure monitoring apparatus of claim 1, wherein the controller is further configured to request a user to input the tire information when the reset button of the tire pressure is operated. ### Claim 3 (depends on 2) The tire pressure monitoring apparatus of claim 2, wherein the tire information comprises information on a manufacturer and a size of a tire. ### Claim 4 (depends on 2) The tire pressure monitoring apparatus of claim 2, wherein the controller is further configured to determine a reference pressure of a corresponding tire based on the tire information input by the user. ### Claim 5 (depends on 4) The tire pressure monitoring apparatus of claim 4, wherein the controller is further configured to output a message that notifies the reference pressure of the corresponding tire. ### Claim 6 (depends on 2) The tire pressure monitoring apparatus of claim 2, wherein the controller is configured to determine that the tire information satisfies a second reference condition when the tire information input by the user satisfies a reference specification. ### Claim 7 (depends on 6) The tire pressure monitoring apparatus of claim 6, wherein the controller is further configured to output a message that notifies a performance degradation and a service center visit when the tire information input by the user does not satisfy the second reference condition. ### Claim 8 (depends on 1) The tire pressure monitoring apparatus of claim 1, wherein the controller is further configured to output a message that notifies a reset completion state of the tire pressure. ### Claim 9 (depends on 1) The tire pressure monitoring apparatus of claim 1, wherein the controller is further configured to output an alarm when the tire pressure exceeds the reference pressure range. ### Claim 10 (depends on 1) The tire pressure monitoring apparatus of claim 1, wherein the controller is configured to determine the tire pressure based on a resonance frequency and a dynamic radius of a tire. ### Claim 11 A the pressure monitoring method comprising steps of: determining whether vehicle state information and tire information input by a user satisfy a reference condition when a reset button of a tire pressure is operated; detecting the tire pressure when the reference condition is satisfied; resetting the tire pressure when the tire pressure is within a reference pressure range; outputting an alarm when the tire pressure is not within the reference pressure range; and wherein the step of determining whether vehicle state information and tire information input by a user satisfy a reference condition comprises: determining state information about a brake pedal and a gear stage of a vehicle; and determining that the vehicle state information satisfies a first reference condition when the brake pedal is pressed and the gear stage is engaged at a parking (P) stage. ### Claim 12 (depends on 11) The tire pressure monitoring method of claim 11, further comprising a step of requesting the user to input the tire information when the reset button of the tire pressure is operated. ### Claim 13 (depends on 12) The tire pressure monitoring method of claim 12, wherein the tire information comprises information on a manufacturer and a size of a tire. ### Claim 14 (depends on 12) The tire pressure monitoring method of claim 12, further comprising steps of: determining a reference pressure of a corresponding tire based on the tire information input by the user; and outputting a message to notify the reference pressure of the corresponding tire. ### Claim 15 (depends on 12) The tire pressure monitoring method of claim 12, wherein the step of determining comprises determining that the tire information satisfies a second reference condition when the tire information input by the user satisfies a reference specification. ### Claim 16 (depends on 15) The tire pressure monitoring method of claim 15, further comprising a step of outputting a message to notify a performance degradation and a service center visit when the tire information input by the user does not satisfy the second reference condition. ### Claim 17 (depends on 11) The tire pressure monitoring method of claim 11, further comprising a step of outputting a message to notify a reset completion state of the tire pressure. ### Claim 18 (depends on 11) The tire pressure monitoring method of claim 11, further comprising a step of outputting an alarm when the tire pressure exceeds the reference pressure range. ### Claim 19 (depends on 11) The tire pressure monitoring method of claim 11, wherein the step of detecting comprises determining the tire pressure based on a resonance frequency and a dynamic radius of a tire.